Main Idea and New Vocabulary Key Concept: Types of Angles

Slides:

Advertisements

Similar presentations

Adjacent, Vertical, Supplementary, and Complementary Angles

Advertisements

Lines, Segments, and Rays. Line  A line is perfectly straight and extends forever in both directions. Any two points on the line can be used to name.

ANGULAR GEOMETRIC PRINCIPLES

Adjacent, vertical, complementary and supplementary angles

Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Types of Angles Example 1:Name Angles Key Concept:Pairs of Angles Example 2:Real-World Example.

Angle Pair Relationships

Angles (def) An ACUTE ANGLE is an angle w/ a MEASURE less than 90° (def) A Right angle is an angle w/ a MEASURE = 90° (def) An Obtuse angle is an angle.

5-1 Classifying Triangles

Angles Acute angle (def)- angle measure less than 90° Right angle (def)- angle measure= 90° Obtuse angle (def)- angle measure greater than 90° Straight.

Angle Relationships Geometry 1.5.

Math I CAN find the measure of angles. I CAN construct angles.

Line and Angle Relationships

Ch 1.4.  Different kinds of angles.  Angle relationships and how they can be used to apply algebraic concepts.

1.4 Pairs of Angles Adjacent angles- two angles with a common vertex and common side. (Side by side) Linear pair- a pair of adjacent angles that make a.

Warm Up Name an example of: Obtuse, acute, straight, & adjacent ∠ ’s (Be sure to use 3 letters when naming the ∠ ) B H T A M.

How do you measure, name and classify angles? What is the Angle Addition Postulate? How do you identify angle pairs? Chapter 1 Section 1.6.

Lesson 1-4: Angles 1 Lesson 1-4 Angles. Lesson 1-4: Angles 2 Angle and Points An Angle is a figure formed by two rays with a common endpoint, called the.

UNIT: Tools of Geometry LESSON: 1.2a – Angles

1.18 – — – (-6) 2.(2 3 – 3) (-7) 3.8X – 24 = – / /3 7.6 ¼ ÷ 7 ½ 16 4.

Opening Activity #1 Turn in your Are You Ready?. #2 Have a pencil out & complete your progress tracker for your Ch. 7 pretest. #3 Go to xtramath.org and.

Lines and Angles Ray Congruent Equal in size and shape.

Angles Project Endiya, Nick, and Mason 5th period Let’s get learning…

Angle Relationships Lesson 9-3. Angle Relationships Vertical angles are the opposite angles formed by intersecting lines. Vertical angles are congruent.

1-4: Measuring Angles. Parts of an Angle Formed by the union of two rays with the same endpoint. Called sides of the angle Called the vertex of the angle.

ANGLE RELATIONSHIPS Mrs. Insalaca 8 th Grade Math.

Proving the Vertical Angles Theorem (5.5.1) May 11th, 2016.

Angles #29 Acute angle (def)- angle less than 90° # 28 Right angle (def)- angle = 90° #30 Obtuse angle (def)- angle greater than 90° #31 Straight angle.

+ CHAPTER 2 Section 4: Complementary and Supplementary Angles.

BIG IDEAS: MEASUREMENT & REASONING AND PROOF ESSENTIAL UNDERSTANDINGS: Number operations can be used to find and compare the measures of angles The Protractor.

Basics of Geometry Basics of Geometry 1.4 Let’s talk about Angles.

GEOMETRY HELP Name the angle below in four ways. The name can be the vertex of the angle: G. Finally, the name can be a point on one side, the vertex,

Exploring Angle Pairs Unit 1 Lesson 5. Exploring Angle Pairs Students will be able to: Identify Special Angle Pairs and use their relationships to find.

Measuring Angles Unit 1 Lesson 4.

2.1/2.2 Angles and Triangles Warm-up (IN)

Angle Relationships.

8-3 Angle Relationships Warm Up

Do Now Classify each angle as acute, right, obtuse or straight.

Main Idea and New Vocabulary NGSSS Key Concept: Pairs of Angles

Objective: To recognize and classify angles and

1-4: Measuring Angles.

Classify angles and triangles 10.3

Classify Angles Section 7.1.

Exploring Angle Pairs Unit 1 Lesson 5.

Main Idea and New Vocabulary Key Concept: Angles of a Triangle

Angle Relationships Teacher Twins©2014.

Two angles that add up to 90 degrees.

Lesson 5-1 Angle Relationships

1-5 Angle Relations.

Geometry Topics Name: __________________________

Main Idea and New Vocabulary

Classify Angles Directions: Cut out each figure below. Classify the angle as a right angle, an acute angle, or an obtuse angle. Glue the figure underneath.

Key Concept: Transversals and Angles Example 1: Classify Relationships

Main Idea and New Vocabulary Key Concept: Pairs of Angles

Measures and Relationships

Chapter 2 : Angles Vocabulary Terms.

Exploring Angles and Angle Relationships

Angles An angle is made up of 2 rays with a common end point called the vertex. Angles are measured in units called degrees. Vertex- the point where the.

Lesson 1: Angles and Angle Classification

Example 1: Naming Angles Key Concept: Types of Angles

Aim: Do Now: What are rays and angles? Ans. M(4, -8) Ans. 10

Angle Relationships Teacher Twins©2014.

Introduction to Angles. Angle Pairs 1-3

Unit 4A – Geometric Figures Lesson 1 Classify Angles

Key Concept: Transversals and Angles Example 1: Classify Relationships

Presentation transcript:

Main Idea and New Vocabulary Key Concept: Types of Angles Example 1: Name Angles Key Concept: Pairs of Angles Example 2: Real-World Example Example 3: Find a Missing Angle Measure Lesson Menu

Classify angles and identify vertical and adjacent angles. congruent vertex acute angle right angle obtuse angle straight angle vertical angles adjacent angles Main Idea/Vocabulary

Key Concept

Since the angle is less than 90°, it is an acute angle. Name Angles Name the angle below in four ways. Then classify it as acute, right, obtuse, or straight. • Use the vertex as the middle letter and a point from each side, FGH or HGF. • Use the vertex only, G. • Use a number, 2. Since the angle is less than 90°, it is an acute angle. Example 1

Answer: FGH, HGF, G, 2; acute Name Angles Answer: FGH, HGF, G, 2; acute Example 1

Name the angle below in two ways Name the angle below in two ways. Then classify it as acute, right, obtuse, or straight. A. JKL, K; acute B. LKJ, K; right C. JKL, K; obtuse D. LKJ, J; obtuse Example 1 CYP

Key Concept 2

4 and 5 are adjacent angles because they share a common side. SEWING Identify a pair of vertical angles and adjacent angles in the diagram. Justify your response. Answer: 3 and 5 are vertical angles because they are opposite angles formed by intersecting lines. 4 and 5 are adjacent angles because they share a common side. Example 2

A. vertical: 5 and 7 adjacent: 5 and 8 HIKING Identify a pair of vertical angles and adjacent angles in the diagram of the hiking trails. A. vertical: 5 and 7 adjacent: 5 and 8 B. vertical: 5 and 8 adjacent: 6 and 7 C. vertical: 6 and 7 adjacent: 5 and 8 D. vertical: 6 and 7 adjacent: 7 and 8 Example 2 CYP

Find a Missing Angle Measure What is the value of y in the figure below? The angle labeled y and the angle labeled 60 are vertical angles. Since vertical angles are congruent, the value of y is 60. Answer: 60° Example 3

What is the value of x in the figure below? C. 104° D. 180° Example 3 CYP